Frequencies for first 10,000 rows of pct012g030 variable in sf12010880us26 dataset :

   27 years |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,054       70.54       70.54
          1 |      1,110       11.10       81.64
          2 |        461        4.61       86.25
          3 |        281        2.81       89.06
          4 |        206        2.06       91.12
          5 |        145        1.45       92.57
          6 |        116        1.16       93.73
          7 |         97        0.97       94.70
          8 |         77        0.77       95.47
          9 |         58        0.58       96.05
         10 |         49        0.49       96.54
         11 |         38        0.38       96.92
         12 |         39        0.39       97.31
         13 |         27        0.27       97.58
         14 |         36        0.36       97.94
         15 |         24        0.24       98.18
         16 |         19        0.19       98.37
         17 |         24        0.24       98.61
         18 |         18        0.18       98.79
         19 |         14        0.14       98.93
         20 |         14        0.14       99.07
         21 |          7        0.07       99.14
         22 |         11        0.11       99.25
         23 |          7        0.07       99.32
         24 |          5        0.05       99.37
         25 |          5        0.05       99.42
         26 |          7        0.07       99.49
         27 |          5        0.05       99.54
         28 |          5        0.05       99.59
         29 |          2        0.02       99.61
         30 |          8        0.08       99.69
         31 |          3        0.03       99.72
         32 |          4        0.04       99.76
         33 |          3        0.03       99.79
         34 |          2        0.02       99.81
         35 |          3        0.03       99.84
         37 |          1        0.01       99.85
         38 |          3        0.03       99.88
         39 |          1        0.01       99.89
         41 |          1        0.01       99.90
         42 |          2        0.02       99.92
         43 |          1        0.01       99.93
         48 |          1        0.01       99.94
         49 |          1        0.01       99.95
         51 |          1        0.01       99.96
         55 |          1        0.01       99.97
         56 |          1        0.01       99.98
         59 |          1        0.01       99.99
         95 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 8 May 2017